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Original rewrites on React, Node.js, TypeScript and AI — practical notes from the same engineering practice behind our operator software. Article bodies are in English.
Tagged: ReAct
Stop Syncing State With useEffect: A Safer React Pattern
Learn why using useEffect to sync derived state causes race conditions and extra renders, and how to replace it with render-time derivation and the key prop.
2523 wordsRead articleA Reusable Custom Hooks Toolkit for Every New React Project
Explore a curated set of custom React hooks—covering storage, debouncing, clicks, and fetching—that eliminate repetitive boilerplate in new projects.
3840 wordsRead articleReact Components 101: Building Reusable, Maintainable UI Pieces
Learn why splitting UIs into small React components improves reusability, readability, and team collaboration, then build your first functional component.
1873 wordsRead articleBuilding an AI Agent from Scratch: Patterns, ReAct, and LangGraph
Learn the core concepts behind AI agents—planning, tool use, reflection, and the ReAct pattern—and how LangChain and LangGraph fit into building one manually.
1021 wordsRead articleHandling Real-World UI States with React Conditional Rendering
Learn how to build authentication, role, permission, loading, error, and empty-state UIs in React using practical conditional rendering patterns.
2186 wordsRead articleBuilding a Mental Model for React: Reconciliation, State, and Hooks
Learn the reasoning behind React's core concepts—reconciliation, components, props, state, and hooks—to build intuition instead of memorizing APIs.
2998 wordsRead articleDiagnosing React Performance Issues Beyond the API Response Time
Learn why fast APIs don't guarantee snappy UIs, and how rendering, bundle size, and file organization quietly shape a React app's real performance.
1764 wordsRead articleFrontend Performance: From Code Review Blind Spot to Product Metric
Learn why passing code review isn't enough, which Core Web Vitals actually matter, and how to measure and fix real-world React performance issues.
2316 wordsRead article20 Advanced Next.js 16 Patterns for Senior-Level App Architecture
A rundown of server-first design, caching, streaming, PPR, parallel and intercepting routes, and other patterns for building scalable Next.js 16 applications.
1183 wordsRead article
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